<template>
    <div class="type-nav">
        <div class="container">
            <div class="nav-left" @mouseleave="showOrHidden(false)">
                <h2 class="all" @mouseenter="showOrHidden(true)">全部商品分类</h2>
                <!-- search组件中不显示该导航 -->
                <div class="sort" v-show="isShowList">
                    <div class="all-sort-list2" @click="turnToSearch">
                        <!-- 一级导航 -->
                        <div class="item" v-for="c1 in categoryListData.slice(0, - 2)" :key="c1.categoryId">
                            <h3>
                                <a href="javascript:;" data-level="1" :data-name="c1.categoryName"
                                    :data-id="c1.categoryId">{{
                                            c1.categoryName
                                    }}</a>
                            </h3>
                            <div class="item-list clearfix">
                                <div class="subitem">
                                    <!-- 二级导航 -->
                                    <dl class="fore" v-for="c2 in c1.categoryChild" :key="c2.categoryId">
                                        <dt>
                                            <a href="javascript:;" data-level="2" :data-name="c2.categoryName"
                                                :data-id="c2.categoryId">{{ c2.categoryName }}</a>
                                        </dt>
                                        <dd>
                                            <!-- 三级导航 -->
                                            <em v-for="c3 in c2.categoryChild" :key="c3.categoryId">
                                                <a href="javascript:;" data-level="3" :data-name="c3.categoryName"
                                                    :data-id="c3.categoryId">{{ c3.categoryName }}</a>
                                            </em>
                                        </dd>
                                    </dl>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <nav class="nav">
                <a href="###">服装城</a>
                <a href="###">美妆馆</a>
                <a href="###">尚品汇超市</a>
                <a href="###">全球购</a>
                <a href="###">闪购</a>
                <a href="###">团购</a>
                <a href="###">有趣</a>
                <a href="###">秒杀</a>
            </nav>
        </div>
    </div>
</template>

<script>
// import { reqGetCategoryListData } from '@/api'
import { mapActions, mapState } from 'vuex';
export default {
    name: "TypeNav",
    data() {
        return {
            isShowList: this.$route.meta.isShowCategoryList
        }
    },
    mounted() {
        // const result = reqGetCategoryListData()
        // console.log('111111', result); // pending
        // this.getData();  // 数组数据
        // this.getCategoryListData();
    },
    computed: {
        ...mapState('home', ['categoryListData'])
    },
    methods: {
        // getData() {
        //     this.$store.dispatch('home/getCategoryListData')
        // },

        // 1、三级导航点击跳转
        turnToSearch(e) {
            const { level, id, name } = e.target.dataset;
            // 判断是否存在参数（即是否点击a标签而非空白部分）
            if (!level) return;
            // 拿到参数后，进行路由的跳转
            const { params } = this.$route;
            this.$router.push({  // 此处的push已经被封装，所以不需要处理编程式导航的报错情况
                path: '/search',
                query: {
                    categoryName: name,
                    ['category' + level + 'Id']: id
                },
                params
            })
        },
        // 2、进入显示菜单
        // enterToShow() {
        //     if (this.$route.name === 'search') {
        //         // console.log(1111);
        //         // 在search组件中滑入显示
        //         // this.$route.meta.isShowCategoryList = true; // 不可以用，没效果，需要把别的组件的数据拿到自己组件中，然后更改自己组件的数据
        //         this.isShowList = true;
        //         // console.log(this.$route, '----');
        //     }
        // },
        // 3、鼠标离开隐藏菜单
        // leaveToHidden() {
        //     if (this.$route.name === 'search') {
        //         this.isShowList = false;
        //     }
        // },
        // 封装 2 && 3
        showOrHidden(bol) {
            if (this.$route.name === 'search') {
                this.isShowList = bol;
            }
        }

    }
}
</script>

<style lang="less" scoped>
.type-nav {
    border-bottom: 2px solid #e1251b;

    .container {
        width: 1200px;
        margin: 0 auto;
        display: flex;
        position: relative;

        .all {
            width: 210px;
            height: 45px;
            background-color: #e1251b;
            line-height: 45px;
            text-align: center;
            color: #fff;
            font-size: 14px;
            font-weight: bold;
        }

        .nav {
            a {
                height: 45px;
                margin: 0 22px;
                line-height: 45px;
                font-size: 16px;
                color: #333;
            }
        }

        .sort {
            position: absolute;
            left: 0;
            top: 45px;
            width: 210px;
            height: 461px;
            position: absolute;
            background: #fafafa;
            z-index: 999;

            .all-sort-list2 {
                .item {
                    &:hover {
                        background-color: aquamarine;
                        cursor: pointer;
                    }

                    h3 {
                        line-height: 30px;
                        font-size: 14px;
                        font-weight: 400;
                        overflow: hidden;
                        padding: 0 20px;
                        margin: 0;

                        a {
                            color: #333;
                        }
                    }

                    .item-list {
                        display: none;
                        position: absolute;
                        width: 734px;
                        min-height: 460px;
                        background: #f7f7f7;
                        left: 210px;
                        border: 1px solid #ddd;
                        top: 0;
                        z-index: 9999 !important;

                        .subitem {
                            float: left;
                            width: 650px;
                            padding: 0 4px 0 8px;

                            dl {
                                border-top: 1px solid #eee;
                                padding: 6px 0;
                                overflow: hidden;
                                zoom: 1;

                                &.fore {
                                    border-top: 0;
                                }

                                dt {
                                    float: left;
                                    width: 54px;
                                    line-height: 22px;
                                    text-align: right;
                                    padding: 3px 6px 0 0;
                                    font-weight: 700;
                                }

                                dd {
                                    float: left;
                                    width: 415px;
                                    padding: 3px 0 0;
                                    overflow: hidden;

                                    em {
                                        float: left;
                                        height: 14px;
                                        line-height: 14px;
                                        padding: 0 8px;
                                        margin-top: 5px;
                                        border-left: 1px solid #ccc;
                                    }
                                }
                            }
                        }
                    }

                    &:hover {
                        .item-list {
                            display: block;
                        }
                    }
                }
            }
        }
    }
}
</style>